Solved Unexpected breaking after adding Wheels to a Trailer

Hello,
I created a little trailer and after adding "pressureWheels" the speedometer doesn´t work anymore and the car is breaking all the time.

Greetings.

//Edit: I forgot the JBeam part

Code:

"pressureWheels": [
                                                                                                                              ["name","hubGroup"                                                           ,"group","node1:","node2:",                                            "nodeS","nodeArm:","wheelDir"],

            //general settings
             {"radius":0.15},
            {"hubRadius":0.075},
            {"wheelOffset":0},
            {"hubWidth":0.155},
            {"tireWidth":0.145},
            {"numRays":16},

            //general tire values
            {"nodeWeight":0.13},
            {"nodeMaterial":"|NM_RUBBER"},
            {"frictionCoef":1.10},
            {"triangleCollision":false},
            {"pressurePSI":15},
            {"maxPressurePSI":1600},

            //rear
            {"selfCollision":false}
            {"collision":true}
            {"propulsed":0},
            ["R", "trailer_wheel_R", "trailer_wheel_R", "nr80", "nr82", 9999,  "nr81", 1],
            ["L", "trailer_wheel_L", "trailer_wheel_L", "nl66", "nl64", 9999,  "nl67", -1]
            {"propulsed":0},
            {"selfCollision":false}
            {"disableMeshBreaking":false}
            {"collision":false}
    ],

 

*facepalm* I only needed to reverse the wheel direction
Instead of
["R", "trailer_wheel_R", "trailer_wheel_R", "nr80", "nr82", 9999, "nr81", 1],
i need to use
["R", "trailer_wheel_R", "trailer_wheel_R", "nr80", "nr82", 9999, "nr81", -1],